Output Register Led 1 / 2 (Read/Write, Address 404Eh) - Siemens SIMATIC IPC427C Operating Instructions Manual

Detailed descriptions
16.4 I/O Address Areas
16.4.5

Output register LED 1 / 2 (read/write, address 404Eh)

Meaning of the bits
Output register LED 1 / 2 (read/write address 404Eh)
Bits
15
1
1
0
Note
The L1 and L2 LEDs indicate by flashing alternatively yellow the progress of the BIOS self-
test during the device startup. When the BIOS self-test is completed, the L1 and L2 LEDs go
dark.
140
14 13 - 8 7
1
1
0
1
0
1
xxxxxx
6 5 - 0
1 LED L1 / SF dark (default)
0 LED L1 / SF lights yellow
1 LED L1 / SF lights red (= group fault)
LED L2 / R/S dark (default)
LED L2 / R/S lights yellow (= STOP)
LED L2 / R/S lights green (= RUN)
xxxxxx Reserved (read/write)
Operating Instructions, 04/2009, A5E02414743-01
SIMATIC IPC427C